Year	per 1,000 people
1960	47.469
1961	47.564
1962	47.541
1963	47.392
1964	47.26
1965	46.837
1966	46.252
1967	45.6
1968	44.786
1969	43.879
1970	43.157
1971	42.912
1972	42.642
1973	42.237
1974	41.904
1975	41.45
1976	41.072
1977	40.759
1978	40.331
1979	40.027
1980	39.753
1981	39.472
1982	38.781
1983	37.91
1984	36.933
1985	35.904
1986	35.107
1987	35.191
1988	34.804
1989	34.123
1990	33.433
1991	32.787
1992	32.222
1993	31.564
1994	31.219
1995	30.683
1996	30.127
1997	29.413
1998	29.31
1999	28.499
2000	27.465
2001	25.995
2002	24.484
2003	23.257
2004	22.085
2005	21.261
2006	20.689
2007	20.182
2008	19.812
2009	19.584
2010	19.428
2011	19.372
2012	19.151
2013	18.969
2014	18.809
2015	18.406
2016	17.566
2017	16.974
2018	16.536
2019	16.416
2020	16.188
2021	16.025
2022	15.803